M PIC16F872 Data Sheet 28-Pin, 8-Bit CMOS FLASH Microcontroller with 10-Bit A/D 2002 Microchip Technology Inc. DS30221B Note the following details of the code protection feature on PICmicro MCUs. The PICmicro family meets the specifications contained in the Microchip Data Sheet. Microchip believes that its family of PICmicro microcontrollers is one of the most secure products of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowl- edge, require using the PICmicro microcontroller in a manner outside the operating specifications contained in the data sheet. The person doing so may be engaged in theft of intellectual property. Microchip is willing to work with the customer who is concerned about the integrity of their code. Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as unbreakable. Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our product. If you have any further questions about this matter, please contact the local sales office nearest to you. Information contained in this publication regarding device Trademarks applications and the like is intended through suggestion only The Microchip name and logo, the Microchip logo, FilterLab, and may be superseded by updates. It is your responsibility to KEELOQ, MPLAB, PIC, PICmicro, PICMASTER, PICSTART, ensure that your application meets with your specifications. PRO MATE, SEEVAL and The Embedded Control Solutions No representation or warranty is given and no liability is Company are registered trademarks of Microchip Technology assumed by Microchip Technology Incorporated with respect Incorporated in the U.S.A. and other countries. to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, use or otherwise. Use of Microchips products as critical com- In-Circuit Serial Programming, ICSP, ICEPIC, microID, ponents in life support systems is not authorized except with microPort, Migratable Memory, MPASM, MPLIB, MPLINK, express written approval by Microchip. No licenses are con- MPSIM, MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select veyed, implicitly or otherwise, under any intellectual property Mode and Total Endurance are trademarks of Microchip rights. Technology Incorporated in the U.S.A. Serialized Quick Term Programming (SQTP) is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999. The Companys quality system processes and procedures are QS-9000 compliant for its PICmicro 8-bit MCUs, KEELOQ code hopping devices, Serial EEPROMs and microperipheral products. In addition, Microchips quality system for the design and manufacture of development systems is ISO 9001 certified. DS30221B - page ii 2002 Microchip Technology Inc.